﻿using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Data;

namespace UIWindows.Tools.Converter
{
    [ValueConversion(typeof(string), typeof(string))]
    public class StringOutputInitials : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value == null)
            {
                return "无";
            }
            string str = (string)value;
            return str.Substring(0,1);
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            return value;
        }
    }
}
